This error is not related to shared libraries. You need to set maximum process size in megabytes. If you don’t use login_process_per_connection you might need to grow this. Just open /etc/dovecot.conf file# vi /etc/dovecot.conf Find line read as follows:login_process_size Uncomment and set it to 64:login_process_size = 64 Save and close the file. Restart dovecot imap server:# /etc/init.d/dovecot restart

The Dovecot package on x86_64 (64 bit system) kernels requires the parameter “login_process_size = 64” to be added to /etc/dovecot.conf after an upgrade to RHEL / CentOS 5.1.